74LV574 Просмотр технического описания (PDF) - Philips Electronics
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74LV574 Datasheet PDF : 12 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger (3-State)
Product specification
74LV574
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KΩ
SYMBOL
PARAMETER
WAVEFORM
CONDITION
VCC(V)
1.2
tPHL/tPLH
Propagation delay
CP to Qn
Figure 1, 4
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPZH/tPZL
3-State output
enable time
OE to Qn
Figure 2, 4
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
tPHZ/tPLZ
3-State output
disable time
OE to Qn
Figure 2, 4
2.0
2.7
3.0 to 3.6
4.5 to 5.5
tW
Clock pulse width
HIGH or LOW
Figure 1
2.0
2.7
3.0 to 3.6
1.2
tsu
Set-up time
Dn to CP
Figure 3
2.0
2.7
3.0 to 3.6
1.2
th
Hold time
Dn to CP
Figure 3
2.0
2.7
3.0 to 3.6
fmax
Maximum clock
pulse frequency
Figure 1
2.0
2.7
3.0 to 3.6
NOTE:
1. Unless otherwise stated, all typical values are at Tamb = 25°C.
2. Typical value measured at VCC = 3.3V.
LIMITS
–40 to +85 °C
MIN TYP MAX
–
80
–
–
27
34
–
20
25
–
152
20
–
–
17
–
70
–
–
24
34
–
18
25
–
132
20
–
–
17
–
75
–
–
27
27
–
21
21
–
162
17
–
–
15
34
9
–
25
6
–
20
52
–
–
10
–
22
4
–
16
3
–
13
22
–
–
–10
–
5
–4
–
5
–3
–
5
–22
–
15
40
–
19
58
–
24
702
–
LIMITS
–40 to +125 °C
MIN MAX
–
–
–
43
–
31
–
25
–
21
–
–
–
43
–
31
–
25
–
21
–
–
–
34
–
26
–
21
–
18
41
–
30
–
24
–
–
–
26
–
19
–
15
–
–
–
5
–
5
–
5
–
12
–
16
–
20
–
UNIT
ns
ns
ns
ns
ns
ns
MHz
1998 Jun 10
6
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